mirror of
https://github.com/openwrt/openwrt.git
synced 2024-12-23 15:32:33 +00:00
011f2c26f1
As usual these patches were extracted and rebased from the raspberry pi repo: https://github.com/raspberrypi/linux/tree/rpi-4.4.y Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
32 lines
1.1 KiB
Diff
32 lines
1.1 KiB
Diff
From 3b82a9f86033a7a0cef86738f45bd191742a55db Mon Sep 17 00:00:00 2001
|
|
From: Mario Kleiner <mario.kleiner.de@gmail.com>
|
|
Date: Fri, 6 May 2016 19:26:05 +0200
|
|
Subject: [PATCH] drm/vc4: Fix get_vblank_counter with proper no-op for Linux
|
|
4.4+
|
|
|
|
get_vblank_counter hooked up to drm_vblank_count() which alway was
|
|
non-sensical but didn't hurt in the past. Since Linux 4.4 it
|
|
triggers a WARN_ON_ONCE in drm_update_vblank_count on first vblank
|
|
irq disable, so fix it by hooking to drm_vblank_no_hw_counter().
|
|
|
|
Tested against Raspian kernel 4.4.8 tree on RPi 2B.
|
|
|
|
Signed-off-by: Mario Kleiner <mario.kleiner.de@gmail.com>
|
|
Cc: Eric Anholt <eric@anholt.net>
|
|
Signed-off-by: Eric Anholt <eric@anholt.net>
|
|
---
|
|
drivers/gpu/drm/vc4/vc4_drv.c | 2 +-
|
|
1 file changed, 1 insertion(+), 1 deletion(-)
|
|
|
|
--- a/drivers/gpu/drm/vc4/vc4_drv.c
|
|
+++ b/drivers/gpu/drm/vc4/vc4_drv.c
|
|
@@ -102,7 +102,7 @@ static struct drm_driver vc4_drm_driver
|
|
|
|
.enable_vblank = vc4_enable_vblank,
|
|
.disable_vblank = vc4_disable_vblank,
|
|
- .get_vblank_counter = drm_vblank_count,
|
|
+ .get_vblank_counter = drm_vblank_no_hw_counter,
|
|
|
|
#if defined(CONFIG_DEBUG_FS)
|
|
.debugfs_init = vc4_debugfs_init,
|